Tests

compiler-core/src/language_server/tests/completion.rs

@@ -1886,3 +1886,18 @@ pub fn map(_, _) { [] }
         Position::new(3, 8)
     );
 }
+
+#[test]
+fn case_subject() {
+    let code = "
+pub fn main(something: Bool) {
+  case so
+}
+";
+
+    assert_apply_completion!(
+        TestProject::for_source(code),
+        "something",
+        Position::new(2, 9)
+    );
+}

compiler-core/src/language_server/tests/snapshots/gleam_core__language_server__tests__completion__case_subject.snap

@@ -0,0 +1,14 @@
+---
+source: compiler-core/src/language_server/tests/completion.rs
+expression: "\npub fn main(something: Bool) {\n  case so\n}\n"
+---
+pub fn main(something: Bool) {
+  case so|
+}
+
+
+----- After applying completion -----
+
+pub fn main(something: Bool) {
+  case something
+}

compiler-core/src/type_/tests/errors.rs

@@ -2685,3 +2685,8 @@ fn negative_out_of_range_erlang_float_in_pattern() {
 fn negative_out_of_range_erlang_float_in_const() {
     assert_module_error!(r#"const x = -1.8e308"#);
 }
+
+#[test]
+fn missing_case_body() {
+    assert_error!("case True");
+}

compiler-core/src/type_/tests/snapshots/gleam_core__type___tests__errors__missing_case_body.snap

@@ -0,0 +1,15 @@
+---
+source: compiler-core/src/type_/tests/errors.rs
+expression: case True
+---
+----- SOURCE CODE
+case True
+
+----- ERROR
+error: Missing case body
+  ┌─ /src/one/two.gleam:1:1
+  │
+1 │ case True
+  │ ^^^^^^^^^
+
+This case expression is missing its body.